package com.litianhao.nowcode.util;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

/**
 * @author litianhao
 * @create 2020-05-18 14:36
 */
public class CommunityUtil {

    //生成随机的字符串
    public static String generateUUID(){
        return UUID.randomUUID().toString().replaceAll("-","");
    }

    //MD5加密
    // 密码+随机字符串(我们表中的salt)  --> 最终加密之后的密码
    public static String md5(String key){
        if(StringUtils.isBlank(key)){
            return null;
        }
        return DigestUtils.md5DigestAsHex(key.getBytes());
    }

    //
    public static String getJSONString(int code, String msg, Map<String,Object> map){
        JSONObject json = new JSONObject();
        json.put("code",code);
        json.put("msg",msg);
        if(map!=null){
            for(String key : map.keySet()){
                json.put(key,map.get(key));
            }
        }
        return json.toJSONString();
    }
    public static String getJSONString(int code,String msg){
        return getJSONString(code,msg,null);
    }
    public static String getJSONString(int code){
        return getJSONString(code,null,null);
    }

    public static void main(String[] args) {
        Map<String,Object> map = new HashMap<>();
        map.put("name","zhangsan");
        map.put("age",23);
        System.out.println(getJSONString(0,"ok",map));
    }
}
